QID 982422

QID 982422: Java (maven) Security Update for io.dropwizard:dropwizard-validation (GHSA-3mcp-9wr4-cjqf)

Security update has been released for io.dropwizard:dropwizard-validation to fix the vulnerability.

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

This issue may allow Remote Code Execution (RCE), allowing to run arbitrary code on the host system (with the privileges of the Dropwizard service account privileges) by injecting arbitrary [Java Expression Language (EL)](https://docs.jboss.org/hibernate/validator/6.1/reference/en-US/html_single/#section-interpolation-with-message-expressions) expressions when using the self-validating feature ([`@SelfValidating`](https://javadoc.io/static/io.dropwizard/dropwizard-project/2.0.2/io/dropwizard/validation/selfvalidating/SelfValidating.html), [`@SelfValidation`](https://javadoc.io/static/io.dropwizard/dropwizard-project/2.0.2/io/dropwizard/validation/selfvalidating/SelfValidation.html)) in **dropwizard-validation**.

CVSS V3 rated as Critical - 8.8 severity.

CVSS V2 rated as Critical - 9 severity.

Solution

The issue has been fixed in **dropwizard-validation** **1.3.19** and **2.0.2**. We strongly recommend upgrading to one of these versions.Workaround:
If you are not able to upgrade to one of the aforementioned versions of **dropwizard-validation** but still want to use the [`@SelfValidating`](https://javadoc.io/static/io.dropwizard/dropwizard-project/2.0.2/io/dropwizard/validation/selfvalidating/SelfValidating.html) feature, make sure to properly sanitize any message you're adding to the [`ViolationCollector`](https://javadoc.io/static/io.dropwizard/dropwizard-project/2.0.2/io/dropwizard/validation/selfvalidating/ViolationCollector.html) in the method annotated with [`@SelfValidation`](https://javadoc.io/static/io.dropwizard/dropwizard-project/2.0.2/io/dropwizard/validation/selfvalidating/SelfValidation.html).

Example:
```java
@SelfValidation
public void validateFullName(ViolationCollector col) {
if (fullName.contains("_")) {
// Sanitize fullName variable by escaping relevant characters such as "$"
col.addViolation("Full name contains invalid characters: " + sanitizeJavaEl(fullName));
}
}
```

See also:
https://github.com/dropwizard/dropwizard/blob/v2.0.2/dropwizard-validation/src/main/java/io/dropwizard/validation/selfvalidating/ViolationCollector.java#L84-L98

Vendor References

GHSA-3mcp-9wr4-cjqf - github.com/advisories/GHSA-3mcp-9wr4-cjqf

CVEs related to QID 982422

CVE-2020-5245 |

Software Advisories

Advisory ID	Software	Component	Link
GHSA-3mcp-9wr4-cjqf	io.dropwizard:dropwizard-validation		github.com/advisories/GHSA-3mcp-9wr4-cjqf

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